Hi.. My 13 year old son bought a vintage "fyr" in it's carton at a thrift store recently. Trying to date it led me down the rabbit hole, and today i brought out of storage my, and my dad's old model 25 sets, plus a camping set with tiny fry pan, one liter coffee pot and 1.4 liter saucepan, without handles. I have tried to read up and took these pictures below, would appreciate comments and corrections. First my son's model 23: It has the TAB logo on the bottom of the burner, no threads, holes on top and side, and a hinged non removable simmer ring. It is aluminium color painted on something pretty hard. The price written on the box is 8.35 swedish kronor, approximately one dollar, so it had to be pretty old. My guess is mid 60's ? Next my father's old kit, which is well used and lacks the coffee pot which i am sure he used to have back in the day. It has aluminium fry pan, the clip-on simmer ring, has new logo on the strap holders, but the older logo and only mentions model 25 on the burner lid, line type level markers. The white on black strap with red borders could come from the camping kit or be replaced at some point, i can't say for sure, the strap looks very unused compared to the rest of the kit. My guess is early or mid '70s? And finally my kit which is from the late 80's with a dark nonstick pan (which was the"new" nonstick when I got it) without painted outside, more text on the burner and the modern simmer ring, and a coffee pot with curled springy handle holders with detent for the straight up position. It has the circular level markers. Also the camping kit with some homemade handle which has created dents under the strap holders in both the sauce pan and the coffee pot. I guess i have to take my son for a hike soon...
I bought my first Trangia 25 on early 80's, maybe 1980? It had same kind of strap like in this picture:
Do some Swede knows what could be meaning of "Fyr" in case of No 23. Translator gives "Lighthouse" and "Fire".
"fyr" is both lighthouse and fire, but the "fire" meaning is more akin to "bed of embers" or "fire place" - it is a cooking fire, a camp fire, the fire in a steam engine or in a furnace. Maybe you could call it a "deliberate fire in a designated place" whereas "eld" is fire in general, and "brand" is unintentional, dangerous fire.
Fyr’s relationship to English fire is obvious enough, but brand also has the sense of “fire “ in English and its sense of marking with a fire-heated iron gave rise to “brand “ in the trademark sense.
The burner on your Fyr should have a yellow plastic tab like the one in my post here. I did some mailing back and forth with Trangia when I bought mine, and according to them that particular burner was produced between '62 and '66. Here you have a pic of the 3 different burners side by side.